[Asterisk-Users] Ringing Delay

[Brian Mulligan]

Sorry if this is a daft question but when a PSTN call comes in on my
X100P the console shows the following;

NOTICE[1217602880]: File chan_zap.c, Line 4456 (ss_thread): Got event 2
(Ring/Answered)...
NOTICE[1217602880]: File chan_zap.c, Line 4456 (ss_thread): Got event 2
(Ring/Answered)...
NOTICE[1217602880]: File chan_zap.c, Line 4456 (ss_thread): Got event 2
(Ring/Answered)...
NOTICE[1217602880]: File chan_zap.c, Line 4456 (ss_thread): Got event 2
(Ring/Answered)...
    -- Executing Dial("Zap/1-1", "Zap/2") in new stack
    -- Called 2
    -- Zap/2-1 is ringing
    -- Zap/2-1 is ringing
WARNING[1217602880]: File chan_zap.c, Line 2979 (zt_handle_event):
Didn't finish Caller-ID spill.  Cancelling.    -- Zap/2-1 is ringing
    -- Zap/2-1 answered Zap/1-1
    -- Attempting native bridge of Zap/1-1 and Zap/2-1
    -- Hungup 'Zap/2-1'
  == Spawn extension (incoming, s, 1) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'


AS indicated, the call is switched to the context [incoming] which is
configured as follows;

[incoming]
exten=> s,1,Dial,Zap/2

The extension rings but not until the incoming line has rung three
times. If I hang-up the external line before the extension is answered
then the extension continues to ring three more times. Clearly, if I
pick up the extension during this time then nobody is there! 

I would like the extension to ring immediately when the call comes in.
Despite my best efforts I cannot find a configuration element which
addresses it. Could it be my hardware just being too slow?

Thanks
Brian